Clamp for bandless refractory and method

Details Clamp for bandless refractory and method Clamp for bandless refractory and method

1990-10-01

1991-09-03

Kastler, S.

Dispensing

Molten metal dispensing

With subjacent flow guide

222591, 222590, B22D 4150

Patent

active

050445332

ABSTRACT:
A sliding gate valve assembly which has a stationary refractory plate mounted to a mounting plate and secured there by the force pressed against it exerted by another refractory is disclosed. A clamp ring is provided which has extending ears, each of which is bored to ride on a clamp spring assembly. Yieldable means, preferably a coil spring, surrounds the shank of the clamp spring assembly guide shank and engages the underside of the ear and rides in the main frame. When the main frame is closed, pressure is urged on the spring which, in turn, transmits the force to the clamp, the tapered inner edge of which engages the tapered outer edge of the stationary plate. The method of the present invention depends upon utilizing the clamping force of a valve assembly having a main frame and in which yieldable means are provided between the main frame and the mounting plate to urge a continuous clamp ring into engagement with the bandless stationary plate having tapered sidewalls.

REFERENCES:
patent: 3685705 (1972-08-01), Cessna
patent: 4660749 (1987-04-01), Yokoi et al.
patent: 4887748 (1989-12-01), Hicks

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